New way of scheduling works: combine a maintenance strategy (decay analysis) with energy efficiency measures. This led to a new approach of property management: define series of retrofit measures for each building typology.

* For instance, retrofit in 1 step is the best option for kindergartens, from a financial and technical perspective

* Step by step retrofit is preferred for secondary schools. In this case, retrofit in 1 step takes too long or creates high annuities.

The authority has set up in 2015 a reduction target for its energy consumption. Danger here is to retrofit quickly to minimal energy efficiency standards, therefore creating lock-in effects. Approach followed is to give priority to quality over quantity, shift operations if needed

Question from Caisse des Dépôts: is it compulsory for you to aim at building certification in this context?

* Certification is an important element of the global strategy defined in 2015

Caisse des Dépôts presented their financial offer and other public funding opportunities for local authorities

Prêt Croissance Verte offers soft loan to local authorities who build to Passive House Plus / Premium standards or French concurrent standard BEPOS-Effinergie 2013. This loan is also offered for retrofits without specific energy efficiency target. The idea is to intensify the retrofit market

* No variation of interest rate, redemption grant or other benefits if retrofit to higher efficiency standards

* EnerPHit is a proof of quality that will be valuable when

* Operations must be economically viable on an evaluation period of 20 years

* Building owners must ask Caisse des Dépôts in advance for large operations, funding only if work order recent

* Possibility to issue contracts with public authorities on secondary schools

New French law in preparation: make mandatory for local authorities to conduct energy audits and tender for retrofit measures, with a minimal energy consumption reduction of 25%. A good basis for step by step projects. Need to formalize intrinsic energy performance (corrected from weather variations and occupant contingency)

* Contractors only interested if good return rate, no will to tackle difficult situations like asbestos

Presentation by LAMP of leverage effect of public financing in buildings (study by Prognose): a department of Caisse des Dépôts focusing on investment studies similar topics, how to communicate on macro-economics effects of such policies

Financing renewable energy integration

Caisse des Dépôts chose to condition its eco-loan on new build to project which integrate renewable energy production

CD Val de Marne take part in a call for “plus energy communities” showcasing best practice to broaden renewable energy integration

CD Val de Marne install PV on roofs, invest in system and leave operation and maintenance to a contractor. The contractor covers its O&M costs by revenues of PV electricity sold to grid.

LAMP showed some figures regarding cost of photovoltaics: example of 150 €/m² including maintenance on a large office building

Caisse des Dépôts asked if passive house certification rewards renewable integration on a local scale, even if not directly on building. LAMP explained that the new primary energy renewable assessment method and the Plus/Premium certification scheme foster renewables on a local scale.